Reaction-type steam turbine

Abstract

Embodiments of the present invention relate to a steam turbine in which unnecessary axial force is reduced. The steam turbine is capable of preventing a working fluid discharged from each nozzle-equipped rotary body from acting as resistance to the nozzle-equipped rotary bodies. The steam turbine includes a housing, a turbine shaft supported pivotably in the housing, a nozzle-equipped rotary body, and a guide panel. The nozzle-equipped rotary body is in the shape of a plurality of disks stacked along the axial direction of the turbine shaft, is integrally coupled to the turbine shaft, and has at least one or more nozzle holes formed therein so as to rotate as the working fluid is ejected. The guide panel is positioned at the rear end in a flow direction of the working fluid of the nozzle-equipped rotary body and fixed to the housing to guide the flow of the working fluid.

1 . A steam turbine, comprising:
 a housing;   a turbine shaft supported pivotably in the housing;   a nozzle-equipped rotary body in the shape of a plurality of disks stacked along the axial direction of the turbine shaft, being integrally coupled to the turbine shaft and having at least one or more nozzle holes formed therein so as to rotate as the working fluid is ejected and; and   a guide panel positioned at the rear end in the flow direction of the working fluid of the nozzle-equipped rotary body and fixed to the housing to guide the flow of the working fluid.   
     
     
         2 . The steam turbine according to  claim 1 ,
 wherein the guide panel comprises a panel body having a shaft hole for allowing the turbine shaft to pass therethrough and be positioned therein; and a fixing protrusion protruding from the rim of the panel body and fixed to the inside of the housing.   
     
     
         3 . The steam turbine according to  claim 2 ,
 wherein the panel body is equal to or smaller than the diameter of the nozzle-equipped rotary body located at the front end in a flow direction of the working fluid.   
     
     
         4 . The steam turbine according to  claim 1 ,
 wherein the guide panel is disposed closer to the nozzle-equipped rotary body located at the front end in the flow direction of the working fluid among two neighboring nozzle-equipped rotary bodies.   
     
     
         5 . The steam turbine according to  claim 2 ,
 wherein the guide panel is disposed closer to the nozzle-equipped rotary body located at the front end in the flow direction of the working fluid among two neighboring nozzle-equipped rotary bodies.   
     
     
         6 . The steam turbine according to any one of  claim 3 ,
 wherein the guide panel is disposed closer to the nozzle-equipped rotary body located at the front end in the flow direction of the working fluid among two neighboring nozzle-equipped rotary bodies.